When to change plugs

J

James46

Cadet
Joined
Aug 20, 2002
Messages
26
How can you tell if it is time to change ring of fire plugs? :confused: It is a 40 hp. 1994 -Merc. 2 cycle
 
rickdb1boat

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: When to change plugs

I put new ones in every start of the season, unless you happen to have a fouled one or your Motor is running rough.
 
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